MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a mass of external links, many of which point to a redirector infrastructure known for hosting malicious content. The primary redirector URL is https://ttraff.ru/wb?keyword=is%202062%20e250%20br%20specification%20pdf, which is likely used to obscure the final destination and evade detection. The document body, though heavily obfuscated, contains similar URLs, reinforcing the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.ru/wb?keyword=is%202062%20e250%20br%20specification%20pdf In PDF document text
- http://files.thgrill.com/uploads/1/3/1/6/131606094/zumusupawome-pamotobimudivam.pdfIn PDF document text
- http://files.aperturedelta.com/uploads/1/3/1/0/131070845/1069530.pdfIn PDF document text
- http://files.bitsbottlesbush.com/uploads/1/3/1/4/131453255/zemijojusas.pdfIn PDF document text
- http://files.gardentogourmet.com.au/uploads/1/3/0/7/130775506/9466237.pdfIn PDF document text
- http://files.spaceliftinteriordesign.com/uploads/1/3/0/9/130969915/4853761.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1945/9998/files/22965471376.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6296/0023/files/6380490543.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8289/0918/files/61002227346.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7261/7637/files/retegemotef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/0828/4056/files/slope_stability_analysis_nptel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3680/3233/files/rurigajimefut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8531/5739/files/14007797539.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0417/4233/files/54235139370.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3584/5017/files/94717575952.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4553/5400/files/derivative_of_inverse_trigonometric_functions_proof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4354/4488/files/zokirane.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7025/7320/files/wagisalajenisotusupu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2017/3983/files/viziwimobedegabuxomija.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4347/1010/files/adverb_clause_exercises_with_answers.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006569.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6569 | 1548 bytes |
SHA-256: a62106559357334904cd76cac801e64242f9f31474196de616bb2e2ac2188a48 |
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font_01_sfnt_off00006d51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D51 | 5748 bytes |
SHA-256: 605d59781b34284348823b810d3bdf55377b0d3ee5758934698cb6dcb76e2127 |
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font_02_sfnt_off000080da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80DA | 14836 bytes |
SHA-256: 57bca14513ef1fde4c79b2d08c57e6f4f499b345e2883b4ce8fabe052b8a375e |
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